Table A1.

Marginal Effect of Increasing Maturity in Overall Physician Practice Connections–Readiness Survey (Relative to Early Stage Transformation) by Patient Comorbidity Status

Marginal Effect of Maturity on Utilization Measures (P Value)
Intermediate-Stage TransformationLate-Stage Transformation
Diabetes Mellitus
    Total utilization*
        Average across comorbidity statuses0.040 (.407)0.079 (.151)
        0 Comorbidities0.066 (.272)0.095 (.115)
        1 Comorbidity−0.011 (.876)0.030 (.679)
        ≥2 Comorbidities−0.026 (.752)0.083 (.613)
    Number of prescriptions*
        Average across comorbidity statuses0.028 (.374)0.039 (.444)
        0 Comorbidities0.051 (.230)0.061 (.225)
        1 Comorbidity−0.028 (.511)−0.009 (.904)
        ≥2 Comorbidities0.003 (.959)−0.009 (.922)
    Number of outpatient visits*
        Average across comorbidity statuses−0.078 (.231)−0.151 (.020)
        0 Comorbidities−0.047 (.560)−0.147 (.075)
        1 Comorbidity−0.130 (.030)−0.172 (.004)
        ≥2 Comorbidities−0.184 (.005)−0.124 (.172)
    ≥1 Inpatient admission
        Average across comorbidity statuses0.007 (.600)0.002 (.854)
        0 Comorbidities0.000 (.992)−0.005 (.620)
        1 Comorbidity0.011 (.718)0.007 (.821)
        ≥2 Comorbidities0.061 (.248)0.066 (.297)
    ≥1 Emergency department visit
        Average across comorbidity statuses0.012 (.498)0.024 (.239)
        0 Comorbidities0.014 (.362)0.014 (.401)
        1 Comorbidity0.036 (.431)0.064 (.179)
        ≥2 Comorbidities−0.074 (.126)−0.009 (.855)
Cardiovascular disease
    Total utilization*
        Average across comorbidity statuses−0.035 (.607)−0.072 (.505)
        0 Comorbidities−0.076 (.349)−0.175 (.107)
        1 Comorbidity0.055 (.510)0.159 (.294)
        ≥2 Comorbidities−0.111 (.424)−0.256 (.147)
    Number of prescriptions*
        Average across comorbidity statuses−0.046 (.287)−0.047 (.543)
        0 Comorbidities−0.083 (.234)−0.099 (.309)
        1 Comorbidity0.040 (.388)0.047 (.579)
        ≥2 Comorbidities−0.125 (.141)−0.089 (.401)
    Number of outpatient visits*
        Average across comorbidity statuses−0.167 (.002)−0.201 (.010)
        0 Comorbidities−0.198 (.004)−0.340 (.000)
        1 Comorbidity−0.055 (.530)0.029 (.835)
        ≥2 Comorbidities−0.342 (.004)−0.261 (.024)
    ≥1 Inpatient admission
        Average across comorbidity statuses0.029 (.362)−0.001 (.985)
        0 Comorbidities0.014 (.532)−0.021 (.377)
        1 Comorbidity0.064 (.177)0.073 (.199)
        ≥2 Comorbidities−0.001 (.992)−0.105 (.258)
Cardiovascular disease
    ≥1 Emergency department visit
        Average across comorbidity statuses0.009 (.802)−0.012 (.752)
        0 Comorbidities−0.038 (.287)−0.104 (.008)
        1 Comorbidity0.062 (.143)0.100 (.057)
        ≥2 Comorbidities0.061 (.578)0.066 (.520)
  • * Approximate percentage change (0.10 = 10%) in outcome variable when clinic moves from early stage to intermediate- or late-stage transformation.

  • Estimated percentage-point change (0.10 = 10 percentage points) in the probability of outcome when a clinic moves from early stage to intermediate- or late-stage transformation.